48 BULIMULUS-ANTILLEAN. 



Seems nearly allied to B. diaphanus, but no cuticular spirals are 

 mentioned by Pfeiffer. 



B. MAZEI Crosse. PI. 9, figs. 57, 58. 



Shell partly covered subrirnate, elongated, turriculate, quite thin, 

 under the lens seen to be delicately, somewhat obliquely striated ; 

 deep brown. Spire elevated, the apex rounded and rather obtuse, 

 slightly pitted in the middle ; suture impressed. Whorls 7, a little 

 convex and slowly widening, the earlier 2 paler, the last very ob- 

 tusely subangular at the periphery, the angle disappearing toward 

 the lip- edge. 



Aperture subvertical, less than half the total length, angular- 

 ovate, brown within ; peristome simple, the margins distant, colu- 

 mellar margin dilated and reflexed, whitish-brown, almost wholly 

 covering the umbilical chink ; basal and outer margins rounded and 

 acute. Alt. 19, diam. 7 mill. ; aperture 63 mill, long, 4 wide (Crosse). 



Massif des Pitons, Martinique, 730 meters above the sea level 

 (Maze), on damp moss at the bases of trees. 



Bulimulus mazei CROSSE, Journal de Conchyl., xxii, 1874, p. 118, 

 202, pi. 4, f. 3. MAZE, t. c. p. 165. 



The soft parts are black. The form is decidedly more slender than 

 in B. diaphanus or other allied species, and the aperture hardly over 

 one-third of the total length of the shell. 



B. BARBADENSIS (Pfeiffer). PL 12, fig. 61. 



Shell barely perforate or narrowly umbilicated, ovate-conic, thin 

 and fragile, uniform russet-brown. Surface hardly or somewhat 

 shining, with slight and inconspicuous growth-wrinkles and excess- 

 ively faint cuticular spirals, obsolete on the base and sometimes 

 scarcely visible on any part of the shell. Spire straightly conic, the 

 apex obtuse, nepionic whorls densely and minutely zigzag-wrinkled. 

 Whorls 5$, slightly convex, the last regularly convex. 



Aperture somewhat oblique, almost exactly half the shell's length 

 or slightly exceeding that, ovate ; peristome thin, the outer lip not 

 appreciably sinuous or expanded ; columellar lip dilated, generally 

 almost closing the perforation. 



Alt. 20'7, diam. 11 mill.; alt. of aperture 11'2 mill. 



Alt. 20-2, diam. 10 mill. ; alt. of aperture 10'5 mill. 



Barbados (Bland, Guilding, Pfr.); Grenada (Smith). 



